[refactor]: c++ implementation (#13)

implemented in c++ to improve readability and simplify maintenance

Co-authored-by: HiveBeats <e1lama@protonmail.com>
Reviewed-on: #13

inc/OscillatorType.h

@@ -0,0 +1,7 @@
+#pragma once
+typedef enum {
+    Sine,
+    Triangle,
+    Saw,
+    Square
+} OscillatorType;